Restorative Dentistry and Endodontics

  • 제41권1호
  • /
  • Pages.6-11
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  • 2016
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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An in vitro evaluation of the accuracy of four electronic apex locators using stainless-steel and nickel-titanium hand files

  • Gehlot, Paras Mull (Department of Conservative Dentistry and Endodontics, JSS University, JSS Dental College and Hospital) ;
  • Manjunath, Vinutha (Department of Conservative Dentistry and Endodontics, JSS University, JSS Dental College and Hospital) ;
  • Manjunath, Mysore Krishnaswamy (Department of Conservative Dentistry and Endodontics, JSS University, JSS Dental College and Hospital)
  • 투고 : 2015.07.21
  • 심사 : 2015.10.20
  • 발행 : 2016.02.29
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초록

Objectives: The purpose of this in vitro study was to evaluate the accuracy of working length (WL) determination of four electronic apex locators (EALs), namely, Root ZX (RZX), Elements diagnostic unit and apex locator (ELE), SybronEndo Mini Apex locator (MINI) and Propex pixi (PIXI) using Stainless steel (SS) and nickel-titanium (NiTi) hand files. The null hypothesis was that there was no difference between canal length determination by SS and NiTi files of 4 EALs. Materials and Methods: Sixty extracted, single rooted human teeth were decoronated and the canal orifice flared. The actual length (AL) was assessed visually, and the teeth were embedded in an alginate model. The electronic length (EL) measurements were recorded with all four EALs using SS and NiTi files at '0.5' reading on display. The differences between the AL and EL were compared. Results: The results obtained with each EAL with SS and NiTi files were compared with AL. A paired sample t test showed that there was a statistical significant difference between EAL readings with SS and NiTi files for RZX and MINI (p < 0.05). The accuracy of RZX, ELE, MINI and PIXI within ${\pm}0.5 mm$ of AL with SS/NiTi files were 93.3%/70%, 90%/91.7%, 95%/68.3%, and 83.3%/83.3%, respectively. Conclusions: The results of this study indicate that Root ZX was statistically more accurate with NiTi files compared to SS files, while MINI was statistically more accurate with SS files compared to NiTi files. ELE and PIXI were not affected by the alloy type of the file used to determine WL.

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참고문헌

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피인용 문헌

  1. Root ZX Electronic Foramen Locator: An Ex Vivo Study of Its Three Models’ Precision and Reproducibility vol.2017, pp.1687-8736, 2017, https://doi.org/10.1155/2017/5893790
  2. Determination of the Accuracy of 5 Electronic Apex Locators in the Function of Different Employment Protocols vol.43, pp.10, 2016, https://doi.org/10.1016/j.joen.2017.03.039
  3. A clinical evaluation of two electronic apex locators and conventional radiography in working length determination in primary molar and its influence on children's behavioral responses vol.38, pp.2, 2020, https://doi.org/10.4103/jisppd.jisppd_28_20
  4. Effect of solvent use on postoperative pain in root canal retreatment: a randomized, controlled clinical trial vol.24, pp.1, 2016, https://doi.org/10.1007/s00784-019-02948-3
  5. The accuracy of electronic apex locators for determining working length: An in vitro study with artificial teeth vol.47, pp.2, 2016, https://doi.org/10.1111/aej.12455